5 l 7.5
10 l 20
15 l 32.5
20 l 45
25 l 57.5
I know that my output is incrementing by 12.5 which makes it my slope so I have y=12.5x +b how do I find the rest?
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fill in x and y to find b, any of the pairs of values will do.
In other words, set x= 5, y= 7.5 in your equation and solve for b.
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